EX-B High Bay

Class II, Division 1 High Bay Low Bay

Class I, Div 2 · A B C DClass II, Div 1 · E F GClass II, Div 2 · F GClass IIIZone 2 · IIC / Zone 21 · IIIC

Rated power20 to 400 W

Lumen output2,600 to 52,000 lm

ProtectionIP66 / IK08

Up to 140 lm/W · UL 844, UL 1598, UL 924 · emergency option on 150 to 200 W · ceiling, wall, pendant, surface, stanchion

Select Variant

Request a Quote Spec Sheet

Talk to a Specialist → IES photometric files (31)

A specialist replies within one business day with budgetary pricing, lead time and the spec match for your area.

Key Features

0-10V dimming
High luminous efficacy - Up to 140 lumens per watt
Battery backup function available
Compact and robust structure, excellent reliability

Request a Quote

Ratings on the spec sheetIP66IK08 · IK10 with wire guard−40 to +65 °C by modelUL 844UL 1598 / 1598A / 924ATEX / IECEx (Zone 2)DLC (some models)

Product Description

The B Series LED luminaire is a dust-ignition-proof choice for marine and hazardous applications. They can be used in locations where moisture, dirt, dust, corrosion and vibration may be present, or areas where wind, water, snow or high ambient can be expected.

Class II, Division 1 covers areas where combustible dust is present continuously or intermittently during normal operation — typical applications include grain elevators, flour and feed mills, coal handling, and metal-powder plants.

For full electrical, photometric, and mechanical specifications — including IP rating, mounting options, ambient-temperature range, certifications, and ordering codes — download the spec sheet linked above.

Technical specifications

From the published spec sheet. Ordering guide, dimensions and packing data are in the PDF.

General
Series	EX-B, four housing sizes, 20 to 400 W
Hazardous rating	Class I, Division 2, Groups A, B, C, D · Class II, Division 1, Groups E, F, G · Class II, Division 2, Groups F, G · Class III · Class I, Zone 2, Group IIC · Class II, Zone 21, Group IIIC
Listings and standards	UL 844 · UL 1598 · UL 1598A · UL 924 · DLC on listed variations · ATEX II 3G Ex ec IIC T6…T3 Gc · IECEx PCET 22.0008X (Zones 2, 21, 22)
Housing	Copper-free aluminum
Warranty	5-year standard · L70 > 150,000 hours at 55 °C

Electrical
Rated power	20 to 400 W across four housing sizes (see the ordering guide)
Input voltage	120-277 V AC · 100-277 V AC on Zone 2 models
Lumen output	2,600 to 52,000 lm
Efficacy	Up to 140 lm/W
Colour temperature	3000 K to 6500 K
CRI	> 70
Dimming	0-10 V, optional
Emergency backup	Optional on 150 to 200 W models

Mechanical
Mounting	Ceiling, wall, stanchion 25°, pendant, surface
Diffuser / lens	Flat or convex, glass or polycarbonate
Beam angle	40°, 60°, 90°, 120°, T2, T3, T5

Ratings and environment
Ingress protection	IP66
Impact rating	IK08 · IK10 with wire guard
Ambient temperature	−40 °C to +40 / +50 / +55 / +60 / +65 °C by model · T3: −40 °C to +55 °C on Zone 2 models

View Spec Sheet

Class II, Division 1 area, site photography

Downloads

NemaLED EX-B High Bay Spec Sheet.pdfFull technical data, opens in new tab

Photometric Files (IES)

IES photometric files for lighting design and layout in DIALux, AGi32, Visual, and other tools. Download the model that matches your wattage, optic, and voltage. 31 IES files